Short survey about 3D anaglyph photo.
Apr 8, 2018 14:51:05 #
Uuglypher wrote:
... Some who are stereo blind, in fact, qualify as commercial airline pilots! ...
That should be no surprise since stereo vision only works up to about 50 feet after which we have to rely on other depth clues.
Imagine anything coming within 50 feet of an airliner traveling at 400 MPH. By the time binocular vision becomes viable it's too late.
Apr 8, 2018 15:00:53 #
SoHillGuy wrote:
... I personally enjoy viewing anaglyph photos and now understand why ghosting occurs. I find the more an anaglyph image is enlarged the more pronounced the ghosting appears. ...
Ghosting hardly seems to be an important consideration since anaglyph images that you and I produce can be huge (close to 24 MP in some of my examples) compared to the thumbnail sized images (between 0.5 and 1.1 MP) found in Uuglypher's posted pairs. Saying that the anaglyph version is somehow inferior because of ghosting is like saying that a 747 is inferior to a Piper Cub because the 747 makes more noise.
What is far more important is ease of viewing. A full size anaglyph wins hands down over free viewing of thumbnail sized pairs. The anaglyph image in 3D Test is 4837x3252=15.7 MP (Nikon Df). The largest thumbnail I could find in Uuglypher's posts measures 904x1204=1.09 MP.
Apr 11, 2018 21:53:08 #
MMC wrote:
I do not see many members of this forum interested in looking and creating anuglyph 3D pictures. Please answer my questions using just question's numbers like this: 1 yes, 2 yes, 3 yes, 4 no.
1. Do you have anaglyph glasses ?
2. Have you ever seen anuglyph pictures using anaglyph glasses?
3. Do you know how to make 3D anagliph photo?
4. Do you think it is difficult?
Thank you in advance for participating in this survey.
1. Do you have anaglyph glasses ?
2. Have you ever seen anuglyph pictures using anaglyph glasses?
3. Do you know how to make 3D anagliph photo?
4. Do you think it is difficult?
Thank you in advance for participating in this survey.
1. No 2. No 3. No 4. No
Apr 11, 2018 22:09:06 #
Thank you for your reply. Unfortunately a lot of this forum members do not have anaglyph glasses like you and can not see anaglyph pictures and do not have such pleasure as I have.
ejones0310 wrote:
1. No 2. No 3. No 4. No
Apr 15, 2018 17:10:04 #
Apr 15, 2018 17:31:32 #
If you have anaglyph glasses why do not you try to create 3D anaglyph pictures?
topcat wrote:
Yes, I have the glasses, and no I have ever made one. But I do enjoy yours.
Apr 15, 2018 17:51:09 #
What is the best tutorial for creating your own anaglyphs that you like?
Apr 15, 2018 17:58:37 #
MMC wrote:
I can understand your '1. No point - I don't have 3D vision' only if you can see only by one eye. If I am wrong please explain me.
One eye at a time; I switch.
added: technically I have "outward strabismus of greater than 45 prism diopters" .... what this means in practical terms {other than the 4F that kept me from going to Vietnam - I'm sorry, but I think of LBJ every time I see your avatar} is that the eye I am not aiming forward is so far outward that my brain cannot use it to get 3D info
Apr 15, 2018 18:04:11 #
I am sorry, I do not know which tutorial is the best. Try to find it using this link. https://www.bing.com/search?q=how+to+make+3d+anaglyph+photo&form=WNSGPH&qs=SW&cvid=01ef61c3a7284daf9dff64e1fe32bf64&pq=how+to+make+3d+anaglyph+photo&cc=US&setlang=en-US&nclid=AB354FF55B2381223776EA1BE0B0434D&ts=1523829528733&elv=AXK1c4IvZoNqPoPnS%21QRLOPP24Zdt*qMAKhPj8LaVkuWQhYHnE1D0CtnB9bIFngFpkI4ZrzjBHNVwQaUrkRhN8P4Ax5KQJtyTklijhororaN
Fotoartist wrote:
What is the best tutorial for creating your own anaglyphs that you like?
Apr 15, 2018 18:08:28 #
If you have 2 eyes and anaglyph glasses you will see 3D effect only with opened 2 eyes and wearing anaglyph glasses.
rehess wrote:
One eye at a time; I switch.
Apr 15, 2018 18:18:31 #
MMC wrote:
If you have 2 eyes and anaglyph glasses you will see 3D effect only with opened 2 eyes and wearing anaglyph glasses.
See the comment I added while you were posting this - it is physically impossible for me to do this; while I was in grad school, I consulted med-school physicians, who told me that even with corrective surgery, I would never be able to see 3D because of brain wiring issues. My older daughter's eyes point in the same direction, but it turns out that brain wiring also deprives her of 3D vision.
Apr 15, 2018 18:27:39 #
I am sorry.
rehess wrote:
See the comment I added while you were posting this - it is physically impossible for me to do this; while I was in grad school, I consulted med-school physicians, who told me that even with corrective surgery, I would never be able to see 3D because of brain wiring issues. My older daughter's eyes point in the same direction, but it turns out that brain wiring also deprives her of 3D vision.
Apr 16, 2018 13:43:14 #
quote=selmslie]That should be no surprise since stereo vision only works up to about 50 feet after which we have to rely on other depth clues.
Imagine anything coming within 50 feet of an airliner traveling at 400 MPH. By the time binocular vision becomes viable it's too late.[/quote]
No surprise implied:
The point is that “stereo blind” does not imply “depth blind”.
It is during the period between infancy and early puberty that those with the capacity for stereopsis are learning to use ...and equally important...learning to trust and rely on...their personal degree of stereopsis-provided 3D illusion. During that same period the “stereoblind” are likewise learning to use...and to trust and rely on ... monocular cues to depth perception without ever experiencing the “3D illusion”. There are, in fact, some individuals who reach advanced age without ever being aware that they are “stereo blind”, and are not recognized by others as being functionally / behaviorally different in their mode of depth perception. They can thread a needle, play “Whack-a-Mole” at the carnival, and accurately throw and catch a ball. They may even become accomplished graphic artists, painters, and photographers (the evidence for Rembrandt van Rijn having been stereoblind due to unilateral strabismus is persuasive) and they may try viewing stereo image pairs, finally saying:”Nope! Never could do that.”...and go through life otherwise unimpeded.
Some stereoblind, however, if they are stereoblind due to low-angle optical axis divergence, may be able to experience The 3D effect of anaglyph images due to the colored glasses providing their effects on the overlapping regions of the person’s visual fields.
Best regards,
Dave
Imagine anything coming within 50 feet of an airliner traveling at 400 MPH. By the time binocular vision becomes viable it's too late.[/quote]
No surprise implied:
The point is that “stereo blind” does not imply “depth blind”.
It is during the period between infancy and early puberty that those with the capacity for stereopsis are learning to use ...and equally important...learning to trust and rely on...their personal degree of stereopsis-provided 3D illusion. During that same period the “stereoblind” are likewise learning to use...and to trust and rely on ... monocular cues to depth perception without ever experiencing the “3D illusion”. There are, in fact, some individuals who reach advanced age without ever being aware that they are “stereo blind”, and are not recognized by others as being functionally / behaviorally different in their mode of depth perception. They can thread a needle, play “Whack-a-Mole” at the carnival, and accurately throw and catch a ball. They may even become accomplished graphic artists, painters, and photographers (the evidence for Rembrandt van Rijn having been stereoblind due to unilateral strabismus is persuasive) and they may try viewing stereo image pairs, finally saying:”Nope! Never could do that.”...and go through life otherwise unimpeded.
Some stereoblind, however, if they are stereoblind due to low-angle optical axis divergence, may be able to experience The 3D effect of anaglyph images due to the colored glasses providing their effects on the overlapping regions of the person’s visual fields.
Best regards,
Dave
Apr 16, 2018 14:53:46 #
Uuglypher wrote:
No surprise implied: br The point is that “stereo ... (show quote)
Our older daughter had a drivers license before a clever optometrist discovered her stereoblindness. Come to think of it, I've been driving for over fifty years now, and my only issue is parallel parking .... lately I've noticed that I bob my head side to side when I park.
Apr 16, 2018 15:01:58 #
Uuglypher wrote:
...It is during the period between infancy and early puberty that those with the capacity for stereopsis are learning to use ...and equally important...learning to trust and rely on...
Really? Have you never watched a baby, too young even to stand, learning the process while reaching for a mobile hanging over their crib. How about a pre-school child playing ping pong, toss or dodge ball? The ability co perceive and rely on binocular vision is fully developed in infancy.
Stereopsis is not magic. It does not requires much brain power. Small animals can do it. Even bats do it using their ears rather than their eyes. Chameleons do it in an even more interesting way. Flies, spiders and many other crawling creatures manage it with extremely tiny brains.
Lucky for the vast majority of humans, genetic stereo blindness is extremely rare - so rare that many of us never heard of it until a couple of posts back.
Color blindness is certanly much more common and it is easy why it might handicap someone trying to see an anaglyph image. But is shoud not otherwise have any effect on other forms of 3D perception.
Nevertheless, nearly everyone can see a virtual image, Otherwise you would never be able to look at yourself in the mirror. And that's all a 3D image is - a virtual image constructed in the mind from what is received separately by out two eyes. The same portion of the brain is involved whether we are looking ad an actual solid object or at separate 2D images somehow directed separately at the left and right eye.
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